GME G142CFD User Manual
Page 22
G - C O M B O
I N S T R U C T I O N M A N UA L
PA G E 2 3
3-5-8 Split zoom and Full Screen zoom
Split zoom
Split zoom mode expands selected area of the single
frequency by VRM (Variable Range Mark). The left side displays
zoomed section of current sonar record. The VRM of the right
side indicates the zoom section area.
• Press or to change the zoom range.
• Press + or – to change the depth range.
Bottom lock:
If Bottom lock is on, the zoom depth (the depth of the zoom
section) is adjusted automatically so that the bottom is always
displayed in the zoom section.
• To turn Bottom lock on or off press MENU
Select full screen zoom
Highlight bottom lock and press ENT.
Full screen zoom
Displays only the zoom section of split zoom.
[Split zoom]
[Bottom Lock]
[Full screen zoom]
3-5-9 Split bottom
Split bottom display provides a normal picture on the right
half and a selectable range over and below the bottom line is
expanded onto the left half of the screen. This mode is useful
for detecting bottom fish.
• Use the or keys to adjust the zoom range.
• Press + or – to change the range.
• The VRM moves up and down to calculate the bottom
depth automatically.
3-5-10 Split 50/200
The 50 kHz display appears
on the left and the
200 kHz appears on the
right. This dual frequency
display is very useful for
comparing the same
scanning with two
different frequencies.
See page 11
for G142FD.